Cummins/Onan — Change Lubricating Oil By-Pass Filter Element
Maintenance · By-pass oil filter
From a Cummins/Onan operator's manual covering: KT-1150, KT-1150-C450, KT-1150-P450, KT-2300, KT-2300-C900, KT-2300-P900, KTA-1150, KTA-1150-C525, KTA-1150-C600, KTA-1150-P600, KTA-2300, KTA-2300-C1050…. Check it applies to your exact model before use.
Browse Cummins/Onan generators & specs →
Before you start
- Never use a by-pass filter in place of a full-flow filter.
Procedure
- Remove drain plug and drain oil.
- Remove clamping ring capscrew and lift off cover.
- Unscrew support hold-down assembly; lift out and discard element.
- Clean housing and hold-down assembly in solvent; inspect spring and seal.
- Check orifice plug in oil outlet connection; blow out with air.
- Install new element and hold-down assembly; tighten down to stop.
- Install cover and clamping ring; tighten capscrews until clamping lugs are indexed.
- Run engine, check for leaks; add oil to 'H' mark.
Source: Cummins/Onan operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.